Scope the .button class to be .shr-button

[danpastori]

Problem

When using Shr in a framework such as Foundation or Bootstrap, the .button CSS class
used to render Shr is bombarded with unwanted class styles that overwrite the Shr
styles.

Rationale

Frameworks such as Bootstrap and Foundation are very common and utilize the .button
class to style HTML elements. Shr uses this too. The problem is that the two classes
conflict with each other allowing the Shr buttons not to render correctly.

Solution

I'll re-scope the .button class to be .shr-button.

Pros of Solution:

• Can make Shr framework agnostic and be able to be used in all frameworks.

Cons of Solution

• Breaking change that would require the user to update CSS classes to be .shr-button

If you'd like to move forward, let me know and I'll submit a PR!

[sampotts]

Seems very logical to me. Go for it 👍

[sampotts]

I've also made the count .shr-count by default in 2.0.0